STUDY OF THE CAPABILITIES OF RICH DETECTOR AMS BY ANALYZING DATA FROM A PROTOTYPE IN A BEAM OF IONSAuthor:
LANCIOTTI ELISA.
Year:
2005.
University:
COMPLUTENSE DE MADRID [
www.ucm.es].
Place of defense: DEPARTAMENTO DE FÍSICA, ATÓMICA, MOLECULAR Y NUCLEAR.
Place of preparation: CENTRO DE INVESTIGACIONES ENERGÉTICAS, MEDIOAMBIENTALES Y TECNOLÓGICAS (CIEMAT).
Summary: Among the experiments devoted to studies of fundamental physics in space highlights the AMS experiment (Antimatter Magnetic Spectrometer) a magnetic spectrometer high aceptancia designed to operate in space. Objective of the experiment is to measure the flow of cosmic rays with very high precision, allowing the search for antimatter particles of primary origin, and products of annihilation of dark matter. In his second mission AMS will be equipped with a detector Cherenkov (RICH), which is capable of measuring the velocity of the particles precisely at the level of 1 per thousand, allowing the separation of lighter isotopes in cosmic rays in a wide range of energy. The objective of this work is to study the capabilities of the detector RICH AMS-02 in the measurement of velocity and electric charge of cosmic rays in a wide range of cargo. To carry out this study has been used so much of software tools for simulation of the detector in space, as real data taken with a prototype of RICH. The simulation code developed for the reconstruction and RICH has been validated with data taken with the prototype, which has operated in ion beams in the SPS accelerator at CERN in 2002 and 2003. Analysis of samples collected at different configurations and extrapolation of the results to the configuration flight form the central part of this work. The results of this analysis have allowed, among other things, choosing the material radiator for the final design of RICH.
